include/asm-s390/timer.h

   1 /*
   2  *  include/asm-s390/timer.h
   3  *
   4  *  (C) Copyright IBM Corp. 2003
   5  *  Virtual CPU timer
   6  *
   7  *  Author: Jan Glauber (jang@de.ibm.com)
   8  */
   9
  10 #ifndef _ASM_S390_TIMER_H
  11 #define _ASM_S390_TIMER_H
  12
  13 #include <linux/timer.h>
  14
  15 #define VTIMER_MAX_SLICE (0x7ffffffffffff000LL)
  16
  17 struct vtimer_list {
  18         struct list_head entry;
  19
  20         int cpu;
  21         __u64 expires;
  22         __u64 interval;
  23
  24         spinlock_t lock;
  25         unsigned long magic;
  26
  27         void (*function)(unsigned long, struct pt_regs*);
  28         unsigned long data;
  29 };
  30
  31 /* the offset value will wrap after ca. 71 years */
  32 struct vtimer_queue {
  33         struct list_head list;
  34         spinlock_t lock;
  35         __u64 to_expire;          /* current event expire time */
  36         __u64 offset;             /* list offset to zero */
  37         __u64 idle;               /* temp var for idle */
  38 };
  39
  40 extern void init_virt_timer(struct vtimer_list *timer);
  41 extern void add_virt_timer(void *new);
  42 extern void add_virt_timer_periodic(void *new);
  43 extern int mod_virt_timer(struct vtimer_list *timer, __u64 expires);
  44 extern int del_virt_timer(struct vtimer_list *timer);
  45
  46 #endif